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Monitoring the structural Consequences of Phe12-->D-Phe12 and Leu15-->Aib15 substitution in h/r Corticotropin Releasing Hormone: Implications for Design of CRH antagonists.
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
COSY
34% H2O / 66% TFE
3.8
1 atm
310
2
TOCSY
34% H2O / 66% TFE
3.8
1 atm
310
3
NOESY
34% H2O / 66% TFE
3.8
1 atm
310
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AMX
600
NMR Refinement
Method
Details
Software
HYBRID DISTANCE GEOMETRY SIMULATED ANNEALING IN TORSION ANGLE SPACE
REFINEMENT DETAILS CAN BE FOUND IN THE JRNL CITATION ABOVE.
Amber
NMR Ensemble Information
Conformer Selection Criteria
LEAST RESTRAINT VIOLATION
Conformers Calculated Total Number
40
Conformers Submitted Total Number
1
Additional NMR Experimental Information
Details
MEAN STRUCTURE. THE STRUCTURE WAS DETERMINED USING 1H-1H DOUBLE-RESONANCE NMR SPECTROSCOPY. NMR-DERRIVED DISTANCE RESTRAINTS AND 3JHAHN COUPLING CONSTANTS AS WELL AS H-BOND CONSTRAINTS USED IN STRUCTURAL CALCULATION AND REFIMENT PROCEEDURE.
Computation: NMR Software
#
Classification
Version
Software Name
Author
1
refinement
Amber
5.0
PETER KOLLMAN, DAVE CASE, KEN MERZ, THOMAS CHEATHAM, CARLOS SIMMERLING, TOM DARDEN